CN112078262B - Manufacturing method of screen printing product and manufacturing method of intelligent card - Google Patents
Manufacturing method of screen printing product and manufacturing method of intelligent card Download PDFInfo
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- CN112078262B CN112078262B CN202010876997.2A CN202010876997A CN112078262B CN 112078262 B CN112078262 B CN 112078262B CN 202010876997 A CN202010876997 A CN 202010876997A CN 112078262 B CN112078262 B CN 112078262B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/12—Stencil printing; Silk-screen printing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M1/00—Inking and printing with a printer's forme
- B41M1/26—Printing on other surfaces than ordinary paper
- B41M1/30—Printing on other surfaces than ordinary paper on organic plastics, horn or similar materials
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
- G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
- G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
- G06K19/067—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components
- G06K19/07—Record carriers with conductive marks, printed circuits or semiconductor circuit elements, e.g. credit or identity cards also with resonating or responding marks without active components with integrated circuit chips
- G06K19/077—Constructional details, e.g. mounting of circuits in the carrier
- G06K19/0772—Physical layout of the record carrier
- G06K19/07724—Physical layout of the record carrier the record carrier being at least partially made by a molding process
Abstract
The invention provides a method for manufacturing a silk-screen printing product and a method for manufacturing an intelligent card, wherein the method for manufacturing the silk-screen printing product comprises the steps of manufacturing a standard pattern on a sample manufacturing base material by using silk-screen printing equipment, and forming a deformation pattern on the sample manufacturing base material; calculating the deformation amount of the deformation pattern relative to the standard pattern; calculating to a standard pattern by using a silk-screen compensation parameter in a reverse compensation mode: determining coordinate systems of the deformation pattern and the standard pattern, calculating offset of at least one inflection point of the deformation pattern relative to the corresponding position of the inflection point of the standard pattern, and taking the offset as silk-screen compensation parameters; calculating the coordinates of each point in the correction pattern according to the offset in a linear proportion; and printing the corrected pattern on the base material by using silk-screen printing equipment. The manufacturing method of the intelligent card is to apply the manufacturing method of the silk-screen printed product to manufacture the intelligent card. The invention can ensure that the silk-screen pattern is matched with the offset printing pattern and improve the silk-screen printing efficiency.
Description
Technical Field
The invention relates to the field of smart card manufacturing, in particular to a manufacturing method of a silk-screen printing product and a manufacturing method of a smart card.
Background
In the life of people, smart cards, such as bank cards, bus cards, membership cards, phone cards and the like, which are used by people in daily life are commonly used. The existing smart card usually comprises a card base, a smart chip is arranged in the card base, a preset program can be operated in the smart chip, and the data of a card holder and the like are recorded.
With the increase of personalized demands of people on smart cards, the layout design of the existing smart cards is more and more diversified, and the screen printing is a common smart card printing process. Screen printing, referred to as silk-screen printing, generally requires a screen to be manufactured, and printing ink is printed on the screen and a substrate by a silk-screen printing device, and a printed pattern is formed on the substrate after the screen is removed. However, the screen is usually made of a flexible material, so that deformation of the screen during screen printing usually occurs, and the deformation of the screen is often irregular.
Because an offset printing process is required in the manufacturing process of the smart card, namely after the silk screen printing is finished, other patterns need to be printed in an offset printing mode. Since the silk-screen pattern and the offset pattern are matched, i.e. in the originally designed pattern, the center points or preset positioning points of the silk-screen pattern and the offset pattern should coincide. However, the silk-screen pattern is deformed due to the deformation of the silk screen, so that the silk-screen pattern is not matched with the offset pattern, and the offset version needs to be adjusted to ensure the printing quality, so that the offset pattern needs to be frequently changed, the waste in production is caused, and the manufacturing efficiency of the smart card is influenced.
For this reason, it is considered to improve the screen printing process, for example, in the existing screen printing process, the screen printing pattern is corrected by the offset printing pattern, specifically, the coordinate values of the offset printing pattern and the screen printing pattern are firstly obtained, and the coordinate values of the screen printing pattern are corrected, the corrected coordinate values are transmitted to the computer, and then the corrected coordinate values of the screen printing pattern for printing are calculated by the computer, and the screen printing pattern is obtained by this way of calculation. However, this method often needs to obtain the corrected coordinate values of the silk-screen pattern through relatively complicated calculation, which results in a very large calculation amount for correcting the silk-screen pattern.
Disclosure of Invention
The first purpose of the present invention is to provide a method for producing a screen printed product with a small amount of correction calculation for a screen printed pattern.
The second purpose of the invention is to provide a method for manufacturing the intelligent card by applying the manufacturing method of the screen printed product.
In order to realize the first purpose of the invention, the manufacturing method of the silk-screen printing product comprises the steps of determining the working parameters of silk-screen printing equipment, manufacturing standard pattern patterns on a sample manufacturing base material by using the silk-screen printing equipment, and forming deformation pattern patterns on the sample manufacturing base material; calculating the deformation amount of the deformation pattern formed on the sample preparation base material relative to the standard pattern; calculating to obtain silk-screen compensation parameters according to the deformation, calculating to standard pattern patterns in a reverse compensation mode by using the silk-screen compensation parameters, and obtaining corrected pattern patterns; printing the correction pattern on the base material by using silk-screen printing equipment; wherein, using the silk-screen compensation parameter to calculate to the standard pattern in a reverse compensation mode comprises: determining coordinate systems of the deformation pattern and the standard pattern, calculating offset of at least one inflection point of the deformation pattern relative to the corresponding position of the inflection point of the standard pattern, and taking the offset as silk-screen compensation parameters; and calculating the coordinates of each point in the correction pattern according to the offset in a linear proportion.
According to the scheme, the deformation amount of the deformation pattern and the deformation amount of the standard pattern are calculated to be used as compensation parameters, the correction pattern is obtained through calculation in a reverse compensation mode, the coordinate calculation amount of each point in the correction pattern is not large and is obtained through linear calculation, the calculation efficiency of the correction pattern can be improved, the requirement on computer equipment is low, and the production cost of a screen printing product can be reduced.
Preferably, the calculating coordinates of each point in the correction pattern in a linear scale based on the amount of deviation includes: determining at least one reference point in the coordinate system, calculating the distance between each point in the standard pattern and the reference point, calculating the distance between each point in the correction pattern and the reference point according to the linear proportion by combining the offset, and calculating the coordinate of each point in the correction pattern by reversely adding the coordinates of each point in the standard pattern and the distance between each point in the deformation pattern and the reference point.
Therefore, the preset reference points are used as the basis for calculating the coordinates of each point in the correction pattern, so that the coordinates of each point can be calculated on the same basis, the calculation accuracy is improved, and the calculation amount can be reduced.
Further, the calculating coordinates of points in the deformation pattern in a linear scale according to the amount of deviation may include: the coordinates of each point in the correction pattern in two mutually perpendicular directions are calculated.
Therefore, by calculating the coordinate values in two mutually perpendicular directions, for example, the coordinate values in the X-axis direction and the Y-axis direction, the coordinates of each point in the correction pattern can be calculated quickly and accurately.
Still further, the calculating an offset of at least one inflection point of the deformation pattern with respect to the standard pattern may include: an amount of shift of at least one inflection point of the deformed pattern with respect to the standard pattern in two mutually perpendicular directions is calculated.
Therefore, the coordinate value of each inflection point can be calculated quickly by calculating the coordinate values in two directions perpendicular to each other.
The further proposal is that the number of the inflection points is more than two; the inflection point includes at least a point where the slope is abruptly changed in the deformation pattern.
Therefore, the point with the sudden change of the slope in the deformation pattern is set as the inflection point, so that the deformation condition of the deformation pattern can be accurately reflected, and the coordinate values of other points can be better calculated.
Further, the calculating of the amount of deformation of the formed deformation pattern with respect to the standard pattern may include: a standard pattern is printed on a sample base material by using an offset printing process, and the amount of deformation of a deformation pattern printed on the same sample base material relative to the standard pattern is calculated.
Therefore, the standard pattern of the offset printing is used as a reference for comparison, so that the superposition positioning of the silk-screen pattern and the offset printing pattern in the subsequent process is facilitated, and the quality of the final printed pattern is improved.
Further, the inflection point may include at least a point where a deformation amount of the deformation pattern with respect to the standard pattern is maximum in the same direction.
It can be seen that, when the point at which the maximum value of the deformation amounts of the deformation pattern and the standard pattern in the same direction is set as the inflection point and the other coordinates are calculated, the linear increase and decrease can be performed according to the coordinates of the inflection point, thereby improving the accuracy of correcting the pattern.
Further, the origin of the coordinate system is located on the edge of the deformation pattern, and the reference point is located on the coordinate axis of the coordinate system.
It can be seen that the accuracy of the subsequent calculation can be ensured by locating the origin of the coordinate system on the edge of the deformed pattern where no deformation occurs, and the coordinate value of the reference point in at least one direction can be ensured to be 0 by locating the reference point on the coordinate axis, which provides great convenience for the calculation of the coordinates of each point of the correction pattern.
In order to achieve the second objective, the method for manufacturing a screen-printed product according to the present invention includes manufacturing a card base of a smart card, and printing a predetermined pattern on the card base, and specifically, printing the predetermined pattern on the card base by using the method for manufacturing a screen-printed product.
According to the scheme, the intelligent card is manufactured by using the manufacturing method of the screen printing product, particularly when the intelligent card made of PVC materials is subjected to screen printing, the quality of screen printing can be improved, and the deformation of patterns after screen printing is avoided.
Drawings
FIG. 1 is a flow chart of an embodiment of a method of making a screen printed product according to the present invention.
FIG. 2 is a schematic representation of a pattern of a deformation pattern in an embodiment of the method of producing a screen-printed article according to the invention.
FIG. 3 is a diagram showing one aspect of a pattern of a deformed pattern in an embodiment of the method of producing a screen-printed article of the invention.
FIG. 4 is a diagram showing another example of a pattern of a deformed pattern in the embodiment of the method of producing a screen-printed article according to the invention.
Fig. 5 is a diagram showing calculation of the amount of deformation of the deformation pattern with respect to the standard pattern in the embodiment of the manufacturing method of the screen-printed product of the present invention.
The invention is further explained with reference to the drawings and the embodiments.
Detailed Description
The manufacturing method of the silk-screen printing product is mainly used for solving the problem that the existing silk-screen printing pattern is deformed, and the silk-screen printing product can be products such as an intelligent card, a packaging box, a packaging bag and the like. The invention relates to a method for manufacturing a smart card, in particular to a method for manufacturing a smart card made of materials such as PVC (polyvinyl chloride).
The embodiment of the manufacturing method of the silk-screen printing product comprises the following steps:
referring to fig. 1, in the present embodiment, first, step S1 is executed to determine the operating parameters of the screen printing apparatus. Because the silk-screen printing operation is usually performed by the silk-screen printing device, and the working parameters of each piece of silk-screen printing device are not completely the same, the deformation of the silk-screen patterns after the silk-screen printing process is performed by using different silk-screen printing devices is not completely the same for the same silk-screen, but the deformation of the patterns obtained by the same silk-screen printing device for the same silk-screen printing is usually fixed, and therefore, the working parameters of the silk-screen printing device need to be obtained in step S1. The working parameters of the silk-screen printing equipment comprise parameters such as scraper hardness, workshop temperature and humidity, printing pressure and silk screen spacing, wherein the silk screen spacing is a key parameter, and in practical application, the silk screen spacing preferably uses the minimum spacing, so that the deformation of the patterns obtained by the silk-screen printing process is minimum.
Meanwhile, in order to ensure that the deformation of the screen is stable, the method of this embodiment must set certain technical process parameter requirements for the screen, for example, parameters such as screen frame, screen stretching tension (requiring that the four corners and the middle tension of the screen should be consistent) need to be determined, and these parameters can be obtained from the screen manufacturer.
Then, the deformation of the screen during the screen printing operation by the screen printing apparatus needs to be measured, and in this embodiment, the deformation of the screen printing is determined by comparing the difference between the deformation pattern formed after the screen printing by the screen printing apparatus and the standard pattern. Therefore, it is necessary to first make a standard pattern as a base pattern for comparison. The present embodiment produces a standard pattern by offset printing. Since the pattern produced by the offset printing process is hardly deformed, it is considered that the pattern obtained by the offset printing is a standard pattern.
Specifically, a standard pattern is printed on a sample substrate by an offset printing process, and preferably, the standard pattern may be a standard grid printed sheet, see fig. 2, the standard grid printed sheet obtained by the offset printing includes a plurality of standard grids each having a square or rectangular shape, for example, a rectangular ABCD is a standard grid obtained by the offset printing process. As can be seen from fig. 2, each side of the standard lattice ABCD is a straight line, has no distortion, and extends in the X-axis direction or the Y-axis direction in the opposite direction.
Then, step S2 is executed to print on the same sample preparation substrate for the screen printing operation. The silk screen used in the silk screen operation is also a standard grid, that is, for example, the silk screen with the standard grid is manufactured as described in step S1, the silk screen with the standard grid is placed on the silk screen device, the operating parameters of the silk screen device are adjusted, and the silk screen device prints the silk screen pattern on the sample substrate on which the offset printing pattern has been printed by the silk screen process using the silk screen with the standard grid.
Since the screen is inevitably deformed in the screen printing process, the pattern obtained by the screen printing apparatus is actually a deformed pattern. Because the standard pattern obtained by offset printing and the deformed pattern obtained by silk-screen printing are printed on the same sample-making substrate, the deformed pattern and the standard pattern can be directly compared.
Then, step S3 is performed to compare the deformation pattern with the standard pattern and calculate the amount of deformation of the deformation pattern with respect to the standard pattern. In one method, a difference between the deformation pattern and the standard pattern is manually measured by observation using a magnifying glass or an electron microscope, and the difference obtained by the measurement is used as a deformation amount of the deformation pattern with respect to the standard pattern. In another mode, a sample substrate printed with a deformation pattern and a standard pattern is scanned, and the scanned image is measured, that is, the difference value between the deformation pattern and the standard pattern is obtained by measuring the scanned pattern.
Referring to fig. 2, assuming that the four fixed points of the deformed pattern obtained by screen printing are a1, N1, C1 and D1, it can be seen from fig. 2 that the deformed pattern is significantly deformed compared to the four fixed points ABCD of the standard pattern, for example, the point B1 and the point B are corresponding points, but the position of the point B1 is shifted from the position of the point B, for example, in both the X-axis direction and the Y-axis direction. The straight line AD in the standard pattern corresponds to the arc line A1D1 of the modified pattern, and it is seen that some of the straight lines in the standard pattern become the arc lines of the modified pattern. Therefore, the deformation amount of the deformation pattern can be measured by selecting several points in the deformation pattern as representative points.
Specifically, several inflection points are selected from the deformation pattern as measurement points, wherein the inflection points may be points where the slope of the deformation pattern changes abruptly or points where the deformation amount of the deformation pattern is maximum with respect to the standard pattern in the same direction. For example, the B1 point, the C1 point, and the D1 point are points where the slope of the deformation pattern changes abruptly, and these points can be determined as inflection points, so that the difference value between the B1 point and the B point, which is the offset of the B1 point with respect to the B point, can be calculated, and the deformation amount of the deformation pattern with respect to the annotation pattern can be calculated based on the difference value. Further alternatively, the point of the arc line B1C1 and the straight line BC that is the largest in the Y-axis direction is the point at which the amount of deformation is the largest in the X-axis direction, and therefore this point can be used as the inflection point.
The difference between the actual printed deformed pattern and the standard pattern may be large or small, and fig. 3 and 4 show two different deformed pattern and standard pattern diagrams.
Preferably, a rectangular coordinate system is established, such as the coordinate system shown in fig. 2, with one straight side of the pattern of the standard pattern as an X-axis and a symmetrical axis in the X-axis direction as a Y-axis, and the origin of the coordinate system is established such that the origin of the coordinate system is located on the edge of the pattern of the standard pattern. Since the edge of the standard pattern is also the edge of the deformed pattern, the origin of the coordinate system is located on the edge of the deformed pattern.
After the rectangular coordinate system is established, the coordinates of each inflection point can be determined, for example, the coordinates of the point B can be determined, and the coordinates of the point B1 can also be determined, so that the deformation amount of each inflection point can be represented by the offset of the coordinate values in two mutually perpendicular directions of the coordinate system.
After the difference value between the deformed pattern and the standard pattern is calculated, the difference value is directly used as the deformation amount of the calculated deformed pattern relative to the standard pattern, and step S4 is executed to calculate the silk-screen compensation parameter according to the deformation amount. In this embodiment, the deformation amount of the deformation pattern relative to the standard pattern may be directly used as the silk-screen compensation parameter. Therefore, the silk-screen compensation parameter includes coordinate values in two mutually perpendicular directions.
Then, step S5 is executed to calculate the compensation parameter into the standard pattern by using the inverse compensation method, so as to obtain the corrected pattern. For example, a rectangular coordinate system is established in the computer for the standard pattern and the origin of the rectangular coordinate system is determined, and referring to fig. 5, the rectangular coordinate system established for the standard pattern is the same as the rectangular coordinate system established for calculating the deformation amount of the deformed pattern with respect to the standard pattern shown in fig. 2, in which the Y axis is only upward and the X axis is left and right sides, that is, in which the X coordinate of each point of the standard pattern may be a positive value or a negative value but the Y coordinate may not be a negative value.
Then, the position of each point in the standard pattern, that is, the coordinates of each point is determined based on the coordinate system, for example, if the coordinate of one point M of the standard pattern is (X, Y), the function of each point of the standard pattern with respect to the coordinate can be expressed as M ═ f' (X, Y).
Then, the coordinates of each point in the correction pattern are calculated according to the silk-screen compensation parameter in a linear proportion, specifically, at least one reference point in a coordinate system is determined, for example, the reference point is H, the distance between each point in the standard pattern and the reference point is calculated, the distance between each point in the deformation pattern and the reference point is calculated according to the linear proportion by combining the offset of an inflection point, and the coordinates of each point in the correction pattern are calculated by reversely adding the distances between each point in the deformation pattern and the reference point by the coordinates of each point in the standard pattern.
For example, for the inflection point B1, assuming that it is shifted only in the X-axis direction from the point B, i.e., the Y-axis coordinate of the point B is the same as the Y-axis coordinate of the point B1, the shift amount of the inflection point B1 in the X-axis direction is the length of the straight line BB 1. The reference point H is set as a point on the Y axis, and the Y coordinates of the point H and the point B are the same. The X-axis coordinate of a point K1 corresponding to any point K on the straight line BH in the deformation pattern can be calculated in a linear scale, for example, by using the following equation: k1 is KH-KH × BB1/BH, where in the above formula, K1 is the X-axis coordinate of the K1 point of the deformation pattern, K is the X-axis coordinate of the K point of the standard pattern, the value is a known value, H is the X-axis coordinate of the H point of the standard pattern, BB1 is the length of the BB1 line segment, and BH is the length of the BH line segment under the standard pattern.
Similarly, in the Y-axis direction, a point of inflection is first determined, for example, N is a point of the normal pattern, N1 is a point of the deformed pattern, since the shift amount of N from the Y-axis of N1 is the largest on the EN straight line in the deformed pattern, N1 can be determined as the point of inflection, and since N and N1 are both on the Y-axis, N is deformed only along the Y-axis direction, and thus, the shift amount between N1 and N is only along the Y-axis direction.
Accordingly, the coordinate value of any point on the NH straight line on the deformation pattern can be calculated, for example, the coordinate value of the L point on the NH straight line can be calculated by using the following formula: l1 is LN-LN × NN1/LN, and in the above formula, L1 is the Y-axis coordinate of the L1 point of the deformation pattern, L is the Y-axis coordinate of the L point of the standard pattern, which is a known numerical value, N is the Y-axis coordinate of the point N of the standard pattern, NN1 is the length of the line segment NN1, and LN is the length of the line segment LN under the standard pattern.
By applying the method, the difference value of the coordinate values of each point under the deformation pattern and the standard pattern can be calculated, preferably, the coordinate of each point comprises an X-axis coordinate and a Y-axis coordinate, and the X-axis coordinate and the Y-axis coordinate are independently and separately calculated. After calculating the difference between the coordinates of each point under the deformation pattern and the standard pattern, the coordinate values of each point under the correction pattern can be calculated.
After the coordinate values of each point of the deformation pattern are calculated, on the basis of the coordinates of each point of the standard pattern, the offset is added to the coordinates of each point by using a reverse addition mode, namely, the coordinate of each point of the standard pattern is subtracted by the difference value of the coordinate values of the deformation pattern and the standard pattern, so that the coordinates of each point of the correction pattern are obtained, and the correction pattern is obtained.
Finally, step S6 is executed to print the correction pattern on the substrate by using the silk-screen printing apparatus, and if the silk-screen printed product is a smart card made of PVC, the substrate is the card base of the smart card. Of course, if the printing process of the smart card further includes offset printing, the offset printing and the like may be performed according to a predetermined procedure.
The embodiment of the manufacturing method of the smart card comprises the following steps:
the smart card manufactured by the method comprises a card base, wherein the card base can be made of PVC and other materials, a smart chip is arranged in the card base, and in the manufacturing process of the smart card, if the screen printing operation needs to be carried out on the card base of the smart card, the screen printing operation is carried out on the smart card by adopting the steps of the screen printing product manufacturing method.
The method can improve the screen printing quality of the screen printing product, avoid the problem of dislocation of the screen printing pattern and the offset printing pattern, avoid the problem of frequent change of the offset printing version and improve the manufacturing efficiency of the printed product. In addition, the present invention can improve the efficiency of producing printed matter without increasing the amount of calculation of coordinates of each point of the correction pattern.
Finally, it should be emphasized that the present invention is not limited to the above-mentioned embodiments, such as the change of the determination manner of each inflection point, or the change of the specific step of calculating the difference value of each inflection point in the deformed pattern with respect to the coordinates of the standard pattern, and these changes should be included in the protection scope of the present invention.
Claims (9)
1. A manufacturing method of a silk-screen printing product comprises the following steps:
determining working parameters of silk-screen equipment, manufacturing standard pattern patterns on a sample preparation base material by using the silk-screen equipment, and forming deformation pattern patterns on the sample preparation base material;
calculating a deformation amount of the deformation pattern formed on the sample preparation base material relative to the standard pattern;
the method is characterized in that:
calculating to obtain silk-screen compensation parameters according to the deformation, and calculating to the standard pattern by using the silk-screen compensation parameters in a reverse compensation mode to obtain a corrected pattern;
printing the correction pattern on a base material by using the silk-screen printing equipment;
wherein calculating to the standard pattern in a reverse compensation manner using the screen printing compensation parameter comprises:
determining a coordinate system of the deformation pattern and the standard pattern, calculating the offset of at least one inflection point of the deformation pattern relative to the position corresponding to the inflection point of the standard pattern, and taking the offset as the silk-screen compensation parameter; calculating the coordinates of each point in the correction pattern according to the offset in a linear proportion: determining at least one reference point in the coordinate system, calculating the distance between each point in the standard pattern and the reference point, calculating the distance between each point in the deformation pattern and the reference point according to the linear proportion by combining the offset, and calculating the coordinates of each point in the correction pattern by reversely adding the distances between each point in the deformation pattern and the reference point by the coordinates of each point in the standard pattern.
2. The method of manufacturing a screen-printed product according to claim 1, characterized in that:
calculating coordinates of points in the deformation pattern in a linear scale according to the offset amount includes: and calculating the coordinates of each point in the deformation pattern in two mutually perpendicular directions.
3. The method of manufacturing a screen-printed product according to claim 2, characterized in that:
calculating an offset of at least one inflection point of the deformation pattern with respect to the standard pattern includes: an amount of shift of at least one inflection point of the deformation pattern with respect to the standard pattern in two mutually perpendicular directions is calculated.
4. The method of producing a screen-printed product according to any one of claims 1 to 3, characterized in that:
the number of the inflection points is more than two;
the inflection point includes at least a point where a slope abruptly changes in the deformation pattern.
5. The method of producing a screen-printed product according to any one of claims 1 to 3, characterized in that:
calculating a deformation amount of the deformation pattern with respect to the standard pattern includes:
and printing the standard pattern on the sample preparation base material by using an offset printing process, and calculating the deformation amount of the deformation pattern printed on the same sample preparation base material relative to the standard pattern.
6. The method of manufacturing a screen-printed product according to claim 5, characterized in that:
the inflection point includes at least a point at which an amount of deformation of the deformation pattern with respect to the standard pattern is maximum in the same direction.
7. The method of producing a screen-printed product according to any one of claims 1 to 3, characterized in that:
the origin of the coordinate system is located on the edge of the deformation pattern.
8. The method of producing a screen-printed product according to any one of claims 1 to 3, characterized in that:
the reference point is located on a coordinate axis of the coordinate system.
9. The smart card manufacturing method comprises the following steps:
manufacturing a card base of the smart card, and printing a preset pattern on the card base;
the method is characterized in that:
printing a preset pattern on the card substrate includes: printing a preset pattern on the card base by using the manufacturing method of the screen printed matter as claimed in any one of claims 1 to 8.
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